wireless: use menuconfig for WLAN_PRE80211 and WLAN_80211

This should make it very clear which are pre-802.11 or not
Signed-off-by: NLuis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

drivers/net/wireless/Kconfig

@@ -5,7 +5,7 @@
 menu "Wireless LAN"
 	depends on !S390
 
-config WLAN_PRE80211
+menuconfig WLAN_PRE80211
 	bool "Wireless LAN (pre-802.11)"
 	depends on NETDEVICES
 	---help---
@@ -101,7 +101,7 @@ config PCMCIA_NETWAVE
 	  called netwave_cs.  If unsure, say N.
 
 
-config WLAN_80211
+menuconfig WLAN_80211
 	bool "Wireless LAN (IEEE 802.11)"
 	depends on NETDEVICES
 	---help---